<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>用户post提交用户名</title>
</head>
<body>
<!--/+项目名+Servlet的url路径映射-->
<form action="/servlet07/User" method="post">
    username: <input type="text" name="username"/><br>
    <input type="submit" value="submit"/>
</form>

</body>
</html>